Genetic diversity and differentiation of the African wild rice (Oryza longistaminata chev. et roehr) in Ethiopia

Getachew Melaku; Marlee Labroo; Huang Liyu; Zhang Shilai; Huang Guangfu; Zhang Jing; Kassahun Tesfaye; Teklehaimanot Haileselassie; Fengyi Hu

Scientific African (Nov 2019)

Genetic diversity and differentiation of the African wild rice (Oryza longistaminata chev. et roehr) in Ethiopia

Getachew Melaku,
Marlee Labroo,
Huang Liyu,
Zhang Shilai,
Huang Guangfu,
Zhang Jing,
Kassahun Tesfaye,
Teklehaimanot Haileselassie,
Fengyi Hu

Affiliations

Getachew Melaku: Research Center of Perennial Rice Engineering and Technology in Yunnan, School of Agriculture, Yunnan University, Kunming 650091, China; Department of Microbial, Cellular and Molecular Biology, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa 1176, Ethiopia
Marlee Labroo: Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA
Huang Liyu: Research Center of Perennial Rice Engineering and Technology in Yunnan, School of Agriculture, Yunnan University, Kunming 650091, China
Zhang Shilai: Research Center of Perennial Rice Engineering and Technology in Yunnan, School of Agriculture, Yunnan University, Kunming 650091, China
Huang Guangfu: Research Center of Perennial Rice Engineering and Technology in Yunnan, School of Agriculture, Yunnan University, Kunming 650091, China
Zhang Jing: Research Center of Perennial Rice Engineering and Technology in Yunnan, School of Agriculture, Yunnan University, Kunming 650091, China
Kassahun Tesfaye: Institute of Biotechnology, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa 1176, Ethiopia
Teklehaimanot Haileselassie: Institute of Biotechnology, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa 1176, Ethiopia
Fengyi Hu: Research Center of Perennial Rice Engineering and Technology in Yunnan, School of Agriculture, Yunnan University, Kunming 650091, China; Corresponding author.

Journal volume & issue: Vol. 6

Abstract

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Undomesticated rice species (Oryza longistaminata) which possessed AA genome as O. sativa, is native to Africa and a good candidate for widening the cultivated rice gene pool. So as to use O. longistaminata as a genetic resource in rice breeding, its level of genetic diversity and differentiation must be resolved. Thus, 57 SSR markers across the whole rice genome were used to assess the genetic diversity of 360 O. longistaminata accessions from 12 agroecologies of the Amhara and Gambella regions of Ethiopia. RADSeq based analysis on 87 early maturing O. longistaminata accessions was also done to assess genetic differentiation among the Amhara and Gambella regions of Ethiopia. In this study, the Ethiopian O. longistaminata populations showed high genetic diversity (PIC = 76.5%) with a region based genetic differentiation (Fst = 0.08). Furthermore, genetic relatedness among populations of a region was mainly laid on their geographic provenance. Hence, the high genetic diversity and region based differentiation observed in the Ethiopian O. longistaminata populations could be used as a potential genetic resource in rice improvement programs. Keywords: Oryza longistaminata, Differentiation, Genetic diversity, Ethiopia

Published in Scientific African

ISSN: 2468-2276 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science
Website: https://www.journals.elsevier.com/scientific-african

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